Title :
Fairness and throughput enhancing user-combining scheme based on Superposition Coding for a wireless relay system
Author :
Kaneko, Megumi ; Hayashi, Kazunori ; Sakai, Hideaki
Author_Institution :
Graduate School of Informatics, Kyoto University, Yoshida Honmachi Sakyo-ku, 606-8501, Japan
Abstract :
A relay system where two users are served by one Base Station (BS) and one Relay Station (RS) is focused on. A scheme based on Superposition Coding (SC) for Decode-and-Forward (DF) half-duplex relaying is proposed. Thanks to its design and power allocation ratios derived analytically, the proposed scheme is able to serve both users simultaneously, while attaining the same sum rate as the optimal benchmark scheme that exclusively allocates the best user. Simulation results show considerable fairness improvement over a large range of SNRs.
Keywords :
Benchmark testing; Decoding; Encoding; Relays; Resource management; Throughput; Wireless communication; Fairness; Relay System; Resource Allocation; Superposition Coding; Wireless Communication;
Conference_Titel :
Acoustics, Speech and Signal Processing (ICASSP), 2011 IEEE International Conference on
Conference_Location :
Prague, Czech Republic
Print_ISBN :
978-1-4577-0538-0
Electronic_ISBN :
1520-6149
DOI :
10.1109/ICASSP.2011.5947092